Factual error: North Carolina prohibits the tattooing of minors (under 18-years-old) and is not a state that allows minors to be tattooed even with prior consent from a parent or guardian. The Fort Bragg army man gave his son (clearly a minor, about 10-years-old) birthday money to pay for the tattoo and his permission to get a tattoo. (00:14:23)
Continuity mistake: The tattoo artist is almost finished drawing the American flag on the boy's upper right arm. After he wipes it and there's a quick camera shift, the tattoo is less complete - the stripes are bloodier, more jagged, and of unequal width like they were earlier. (00:14:31)
Deliberate mistake: A camera situated behind a front passenger seat of a vehicle could not capture a clear image of the front seat passenger's face (James') in the rear view mirror and then slightly alter its angle to capture the driver's (Mike's) face in the same rear view mirror. (00:21:25)
Other mistake: The woman told James that Salim Mohsin was 42 and conducted research at a private laboratory. The part about Mohsin being "professor emeritus" of virology at Humboldt-Universitat seems contrary to his age (42) and the common meaning of "professor emeritus", which is retired and collecting a pension. It might also be unusual for a tenured professor conducting research at a university to leave in order to conduct research at a private lab. "Other" mistake because not sure of emeritus in Germany. (00:29:33)
Other mistake: It looks like James still has the lens cover on his camera when he is taking pictures of Mohsin. Even in the dark, the lens should not look as black as the camera. (00:31:29)
Other mistake: The info Mike gives to others about Mohsin does not include him being a professor emeritus of virology at Humboldt-Universitat. Instead, Mike reports, "[Mohsin's] family relocated here to Berlin where he continued his research, financed by Farouk Ojjeh [with links to al-Qaeda and Syria]." If Mohsin went from Harvard Med School to a federal research grant and then to the private lab, there's no gap for him to have been a tenured professor who acquired emeritus status. (00:34:48)
Continuity mistake: James comes home from meeting his new boss with a $50k check which he wakes his sleeping wife to show. She turns toward him with their faces nearly touching and in the next cut she is on her side with her back to him.